Bobbin receiver for weft replenishing looms



'Feb. 20, 1951 R. G. TURNER BOBBIN RECEIVER FOR WEFT REPLENIS-HING LOOMS Filed July 28. 1948 FIG llulllllrllllllll. ll

llllllmnllllllllllllllll INVENTOR RICHARD G. TURNER FIG.2

ATTORNEY Patented Feb. 20, 1951 BOBBIN RECEIVER FOR WEFT REPLENISHING LOOMS Richard G. Turner, Worcester, Mass, assignorto Crompton & Knowles Loom Works, Worcester,- Mass, a corporation of Massachusetts Application July 28, 1948, Serial No. 41,036

This invention relates to improvements in re- ,ceivers for spent bobbins in a weft replenishing .to make the receiver of such form as will facilitate removal of the thread of the outgoing bobbin by the latter on a weft replenishing beat of the loom.

Weft replenishing looms of the bobbin changing type are ordinarily provided with some form of holder or receiver for the depleted bobbins which are expelled from the shuttle incident to a weft replenishing operation. In some looms the thread of the outgoing bobbin is out near the shuttle eye and the length of thread which must be removed from the latter is comparatively short, but in other types of looms the threadof the outgoing bobbin is cut between the magazine and the cloth and is much longer. As the depleted bobbin moves downwardly from the shuttle it exerts a pull on the thread, but its ability to remove the thread from the shuttle eye will depend upon the distance through which the bobbin can ,move. It is an important object of the present invention to provide a bobbin receiver so formed as to increase the length of travel of the outgoing bobbin to the end that the latter may more effectively remove its weft end, particularly when the cutting occurs at a considerable distance from the delivery eye of the shuttle.

Heretofore I have proposed bobbin receivers including a metallic frame and a cloth bag, and it is a further object of the invention to provide a bobbin receiving bag which can be used on the usual frame without requiring any changes in the latter, the bag being provided with a bulge on one side thereof toward which the expelled bobbin is directed by the bobbin chute for the purpose of affording greater travel of the bobbin.

It is a further object of the invention to provide a simple form of spreader which can be located within the bobbin bag to hold the aforesaid bulging part thereof extended to prevent collapse thereof. The spreader has the effect of maintaining the increased length of travel of the outgoing bobbin even though the weight of accumu lating spent bobbins in the bottom of the bag might tend to distort the bag in suchmar'ine'rias to reduce the effectiveness of the bulge therein.

With these and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of the parts hereinafter described and set forth.

v In the accompanying drawings, wherein a con- 13 Claims. (01.139-255) 2 venient embodiment of the invention is set forth,

Fig. 1 is a side elevation of a weft replenishing mechanism and adjacent parts of the loom frame, parts of which are in section, showing the improved bobbin receiver in bobbin receiving position,

Fig. 2 is a front elevation of the bobbin receiver and adjacent parts looking in the direction of arrow 2, Fig. 1,

Fig. 3 is a horizontal detail section through the bobbin receiver on line 33, Fig. 2,

.Fig. 4 is a detailed vertical section through the back wall of the bobbin bag on line 4-4, Fig. 3, and

Fig. 5 is a-diagrammatic view showing the relation of the receiver and the thread attached to an outgoing bobbin.

Referring to the drawings, the loom frame [0 supports a lay l provided with a shuttle box I2 to receive a shuttle S. The loom frame supports a. magazine M which as shown herein is of the stationary multicolor type and is provided with four-stacks of reserve bobbins (not shown) each stack of which isprovided with a bobbin releaser l3. When the bobbins drop one at a time from the several stacks they move to a common transfer position indicated by the bobbin B, Fig. 1, under a transferrer arm M. A latch ,,l5 pivoted to the transferrer arm is nor- .mally down, but is raised on a replenishing beat of the loom for operation by a lay carried bunter =16 which causes counter-clockwise movement of as viewed in Fig. 2, extends downwardly and away from or outwardly, or to the right in Fig. 2, with respect to the loom frame I ll. The magazine is provided with a thread cut-,

. ter 2a which is normally in ,a forward non-cuttingposition but when ;a' transfer operation, is called the-cutter moves rearwardly to receive the threadFofithe. ou'tgoingbobbin. At some time during" the replenishing operation the cutter is moved forwardly to cut the thread. As shown in'the diagrammatic view of Fig. 5 the cutter 2Bis located between the cloth C and the shuttle 'S, and that part of the thread F to the right of the cutter extends along a groove 2| in the front wai of the shuttle to the shuttle eye 22 and 3 through the latter to the bobbin B. During descent of the depleted bobbin the weft end severed by the cutter is drawn along the groove behind the box front 23 and through the shuttle eye 22.

The matter thus far described is of common construction more particularly cotton. and worsted looms of the multicolor-weft replenishing type.

Mounted in front of the lay and below the. magazine is a bobbin receiver designated generally at R comprising a metallic skeleton frame: 39 and a cloth bag 3! supported by the frame. Frame may be supportediorr an arm. 32 extend ing laterally from the loom frame 1.0 and have frame 39, as shown for instance. in Fig.. 2.. The.

frame may be made of metallic tubular material bent more or less to the form shown in Figs. I: and 2, and has upright side: members 33 and 34 each having; at its upper end arearwardly. and. preferably downwardly extending arm 35- to: support the upper endof. the: bag 3!; The lower. endsof the sidearms 33 and 34' are joined together by a cross bar 35-which may be received by. a holder 31 on the support 32.

The frame 30 and. its support32 may be. made as set forth. in my prior Patents Nos 2,411,068 and 2,420,918. The particular form. of support 32 shown herein is but one. means of holding the metallic frame 30' and; the invention. to be set forth hereinafter is not necessarily limited in its use to the. support. 32'. The receiver R can be lifted from the support 31 to empty the. spent bobbins and then returned. to position, all as set forth in. patents. already granted to me.

The cloth bag 31 forming the subject matter of the present invention may be of the general formshown in Figs. 1. and 2 and has front and back walls and 4L. respectively, inner and outer walls 42 and 43, respectively, and a bottom 44'. The upper part of the bag is open to define a bobbin receiving mouth 45 and" the top of the bag is suspended'fromthe arms 35 of'the-f'rame'30.

As will be. apparent from Figs. 1 and 5 the outer or right side 43 of the bag as viewed in Fig. 2 is formed: with. apronounced bulge G. The. front and back walls 40 and 4! are extended to the right, Fig. 2, and are attached in any approved, manner, as by stitching, to the outer side wall 43. t will be noted with respect to Fig. 2 that the bulge is on that side of the bag 3 l. opposite the spent bobbin guide-flange or bafiie l8", and extends laterally beyond the right hand support arm 35-, see Fig. 2'. When adepleted bobbin is expelled from shuttle-S itwill engage the bafile l8 and be directed by thelatter toward the bulge G. The bulge permits the bobbin to have a longer travel than would be possible if the right side were straight'and ofthe same form as the left or inner'side 42.

It is to be understood that the cloth bag: 31 is flexible and that for this'reason the bulge may require some support. To eifect this: support I utilize-a hollow spreader: Silwithin. the; bag com.- prising in effect-a wire loop having? front and back sides 5land 52', respectively; connected by right and left ends 53 and 64, respectively. The wireis continuous. and of such. form. as to hold the bulge G in the general. form shown in Fig; 2.

In order to hold the spreader in position the front and back walls of. the bag are provided with clips 55; and, 5.6. as shown". more particularly in Figs. 3: and 4.. These clips. may befastened in any approved manner in. their. respective walls ports 56 may be secured to this plate.

of the bag and are preferably made of spring stock bent to have upwardly opening mouths 62 into which the front and back sides 5! and 52 of the spreader may be inserted. The spreader occupies very little space within the bag and effects no material reduction in the bobbin holding capacity of. the receiver bag- As shown in Fig;. 4. the. back wall of; the bag may include a reinforcing plate and if desired the rear sup- Plate 60 keeps the back wall of the bag fiat and out of the. path of the picker stick 6| In order that the bottom of the bag may be held inshapel use a second spreader 65 shown in Fig. 3. This: spreader is of approximately the same: front and back depth as the spreader 50 but. of less length, and requires no particular means for holding it in the bag since it rests on the floor. 44 by gravity.

It is believed that the advantages of the bag formed: with the. bulge. will. be apparent from. the statement. already made relative to Fig. 5.. The bobbin is. permitted. tohave a. greater length of travel than. would be. possible ifv the outer. wall 43 were more or. less parallel to. the right upright frame member 33. The spreader 50 tends to maintain the bulge in the general form shown in Fig. 2 even though the accumulating bobbins in the-bottom of the bag by their weight might tend to reducev the size of. the bulge; It will also be noted, particularlywith reference to the aforesaid patents, that the receiver R, shown herein can" be supported on the same frame which supports bags of' usual form employed in such looms as do not require the same length of travel of the. outgoingbobbin to pull the weft end F out of the shuttle eye 22.

From the foregoing it will be seen that the invention sets forth an improved form of bobbin receiving bag having, a pronounced bulge on the side thereof opposite the baffle 18, thereby permitting the outgoing bobbin tohave an increased travel for the purpose of more effect'ively drawing'the weft end F out of the shuttleeyje 22. Itwill also be noted that the spreader 50 has no material effect in reducing the'bobbin carrying capacity of' the bag, but effectively maintains thebulge G so that although; bobbins accumulate" in the bottom of the receiver the bulge will be maintained in such shape as to insure adequate travelof the outgoing'bobbin. The spreader is d'etachabl yheld by the clips 55 and 56 and can be removed'from the latter if not needed. The support 32, as already mentioned, is shown merely'forillustrative purposes and the frame 30 may be supported in any other desired manner so long'as its bobbin mouth 45 is held in position to receive the outgoing bobbins. The front" and back dimension of the bag at the bulge thereof is substantially the same as at the left hand part of the bag. as viewedin Fig; 2 so that the bulge d'oes'noti interfere in anyway with the picking mechanism of the loom. The second spreader. 65 lies normally in. the: bottom. of. the bag: by its weight: andeffectively prevents sagging ot the; bottom by the: spent bobbins as; they ac:- cumul'ateiirr the receiver;

Having thus described the invention it will be seen thatchanges and modifications of the foregoing specific' disclosure may be made without departing from the spirit; and scope of the invention- What is. claimed: as: new is:

1. In a weft replenishing loom having a lay'providedi with a bobbin. chute: along which. a spent bobbin moves downwardly incident to a weft replenishing operation, said chute having a bobbin engaging flange which directs the depleted bobbin downwardly and away from the loom, a spent bobbin support frame mounted on the loom, and a cloth bag suspended from said frame in position to receive the spent bobbins, said bag having the side thereof toward which the depleted bobbin is directed by the flange enlarged and extending laterally at a point below said flange beyond said frame to enable the spent bobbin to traverse a relatively long path for the purpose of pulling the weft end secured thereto into the bag.

2. In a weft replenishing loom having a lay provided with a shuttle box and having a bobbin chute under the shuttle box formed in such manner as to direct a spent bobbin being ejected from the shuttle box in a direction downwardly and laterally in a direction away from the loom, a bobbin receiver frame mounted on the loom below the shuttle box, and a bobbin receiving bag supported by said frame and having the side thereof toward which an ejected spent bobbin is directed formed with a bulge below said chute to increase the length of travel of the bobbin and enable the latter to withdraw the weft end attached thereto from the shuttle box.

3. In a weft replenishing loom having a lay provided with a shuttle box and a chute under the shuttle box formed with a bafile inclined downwardly and outwardly away from the loom, a bobbin receiver frame mounted on the loom having vertically extending side members the upper end of one of which is forward of said baffle, and a cloth bobbin receiving bag supported by said frame having a bulge below said baffle in the side of the bag opposite said one member toward which said bafiie points, said bulge enabling the expelled bobbin to have a relatively long travel when directed by the bafiie toward the bulge for the purpose of enabling the expelled bobbin to withdraw the weft end attached thereto from the shuttle box.

4. A bobbin receiver for the spent bobbins of a weft replenishing loom, said receiver comprising a skeleton metallic frame having vertically extending side members the upper end of each of which is formed with a rearwardly extending arm, a cloth bag suspended from the arms and extending downwardly from the arms along and rearward of said side members and having a bobbin receiving mouth located between said arms, one side of the bag being formed with a bulge projecting laterally beyond and rearward of the corresponding side member to provide a relatively long travel for an ejected bobbin entering the mouth at the side of the latter opposite the bulge and directed toward the latter.

5. A bobbin receiver for the depleted bobbins of a weft replenishing loom, said receiver comprising a skeleton metallic frame having vertically extending side-members each of which is formed with a rearwardl extending arm, a cloth bag behindgand' extending along said members and supported by said arms, said bag having a front wall, immediately behind said side members and having a back wall and side walls, the side wall adjacent to the loom when the receiver is in position being substantially straight and the opposite side wall curving downwardly and outwardly from thecorresponding arm to form a bulge in said bag below said arms, the front and back walls being curved to fit the i 6 curve of said opposite side wall and being attached to the latter.

6. A bobbin receiver for the spent bobbins of a weft replenishing loom, said receiver comprising a skeleton metallic frame having vertically extending side members each terminating at the upper end thereof in a rearwardly extending arm, and a cloth bag to receive the spend bobbins suspended from said arms, said bag having sides depending from said arms rearward of said side members and having a bobbin receiving mouth the width of whichis substantially equal to the distance between said arms, one of the 7 sides of said bag being deflected outwardly from the opposite side below said mouth and rearward of the adjacent side member to provide the bag with a dimension below said mouth greater than said width.

7. A bobbin receiver for the spent bobbins of a weft replenishing loom, said receiver comprising a skeleton metallic frame having vertically extending side members lying in a plane and each terminating at the upper end thereof in a rearwardly extending arm, and a cloth bag to receive the spent bobbins suspended from said arms, said bag having sides depending from said arms rearward of said side members'and having a bobbin receiving mouth the width of which is substantially equal to the distance betweensaid arms, said bag having a bottom to support spent bobbins, one of the sides of said bag being deflected outwardly from the opposite side at a point below said mouth and rearward of the adjacent side member to provide the bag with a dimension wider than said mouth or bottom, said dimension of greater width being located between the mouth and the bottom of the bag and extending in a direction parallel to the plane of said side members.

8. In a bobbin receiver for the depleted bobbins of a weft replenishing loom, said receiver comprising a skeleton metallic frame having Vertically extending side members lying in a plane, the upper end of each side member extending rearwardly to provide a support arm, a cloth bag suspended from said arms and extending alongand rearward of said side members and having a mouth inthe upper end thereof between said arms to receive the spent bobbins, said baghaving a dimension thereof below said arms greater than said mouth and extending beyond one of said arms in the direction of the width of the mouth measured between said arms and parallel to said plane.'

9. In a bobbin receiver for the depleted bobbins of a weft replenishing loom, said receiver comprising a metallic skeleton frame having vertically extending side members each formed at the upper end with a rearwardly extending support arm, a cloth bag suspended from said arms and having a bulge formed in one side thereof, and a spreader between the top and bottom of the bag supporting said bulge.

10. In a bobbin receiver for the depleted bobbins of a weft replenishing loom, said receiver comprising a metallic skeleton frame having vertically extending side members each formed at the upper end with a rearwardly extending support arm, a cloth bag suspended from said arms and having a bulge formed in one side thereof, and a spreader within the bag between the top and bottom thereof supporting said bulge.

11. In a bobbin receiver for the depleted bobbins of a weft replenishing loom, a metallic skeleton framehaving vertically extending side members'each formed: at the uppersendwith a rear.- wardly extending support arm, a cloth bag suspended from said arms and; having a. bulge formediin one side/thereof, a spreader within the bag between the top and bottom;thereof.supporting said. bulge, and means: withinxthe bag supporting said spreader.

12. In a bobbin receiver for the spent bobbins of a Weft replenishing loom, metallic supporting frame, a bag supported by the frame having a bobbin receiving mouth at the upper end thereof and a bobbin supportingclosedbottom, a spreader located Within the bag conforming to the'shape of the bottom and supporting said bottom against downward deflection by the Weight of bobbins in the bag.

13. In a bobbin receiver. for the spent bobbins of a Weft replenishing loom, a metallic supporting frame, a bag: supported by the frame having a bobbin. receiving mouth at v the: upper" end: thereof and abcbbihsupporting closed bottom, apart-of. the bagbetween the mouth. and the bottom thereof being formed with a bulge the cross-section of which is greater than the cross sectionof the mouthor the bottom, and a hollow reinforcing spreader. within; the bag engaging the bulge and supporting the latter against deformation due to the weight'of bobbins resting on the bottom of the bag.

RICHARD G. TURNER.

REFERENCES CITED The following references are of record in the file of this patent: 7

UNITED STATES PATENTS Number Name Date 2,350,317 Nichols May 30, 1944 

